docs: def between(self, left, right):
          """
          Select subset of values within the given index range.
  
          Inclusive on the left; exclusive on the right.
  
          Parameters
          ----------
          left : int
              Left-most index in the desired range.
  
          right: int
              Right-most index in the desired range.
          """
          crit = lambda x: left <= x < right
          return self.select(crit)